Kia Optima Kia Optima 2010 Mazda RX-8 Mazda RX-8 2011

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Kia Optima vs. Mazda RX-8 Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Kia Optima vs. Mazda RX-8 Invoice Comparison

Lowest Total Price: $25,090

Kia Optima EX   
Difference: $10,360

Lowest Total Invoice: $23,350

Kia Optima EX   
Difference: $9,363

Calculate Payments

  Down Payment Interest Rate Term
Model Year20102011
ModelOptimaRX-8
TrimEXGrand Touring
Body4dr Sedan4dr Coupe
Base Price $20,995 $32,260
Base Invoice $19,620 $29,878
Navigation system 1,200 2,000
Premium Package 2,200  
Temporary spare tire   395
Navigation system 1,075 1,720
Premium Package 1,960  
Temporary spare tire   320
Options (change) 3,400 2,395
Options (change) 3,035 2,040
Destination 695 795
Total Price $25,090 $35,450
Total Invoice $23,350 $32,713

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

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Request free, no-obligation Kia Optima dealer quotes or Mazda RX-8 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Kia Optima vs. Mazda RX-8

Lowest Adjusted Price and Invoice: Kia Optima EX
TrueDelta Adjusted Price Difference: $10,135
TrueDelta Adjusted Invoice Difference: $9,155
Model Year20102011
ModelOptimaRX-8
TrimEXGrand Touring
Body4dr Sedan4dr Coupe
Engine175hp I4232hp R2
TransmissionT5M6
DrivetrainFWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)360, 7300, 9
Tire (rear if not all the same)215/50-17225/45-18
Total Price$25,090$35,450
Adjustments for Features0-225
Feature-Adjusted Total Price$25,090$35,225
Total Invoice$23,350$32,713
Adjustments for Features0-208
Feature-Adjusted Total Invoice$23,350$32,505

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Features Comparison: Kia Optima vs. Mazda RX-8

Model Year20102011
ModelOptimaRX-8
TrimEXGrand Touring
Body4dr Sedan4dr Coupe
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
6-speed manual $150
FWD$0 
RWD $0
Accessories 
Power rear side windows$200 
Power-adjustable pedals$125 
Proximity key $250
Sunshade, rear$125 
Tilt steering wheel, manual $150
Tilt/telescoping steering wheel, manual$250 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Brake assist$50 
Cargo Management 
Rear seat pass-through $100
Second-row high console $250
Climate Control 
Rain-sensing wipers $175
Variable intermittent wipers$75 
Drivetrain 
Limited-slip rear differential $300
Exterior 
Bodyside moldings$75 
Bright-finished exhaust tip(s) $25
Rear spoiler $200
Infotainment 
Bluetooth cell phone link $100
CD changer, in-dash $325
CD player$125 
Surround sound $250
USB port$25 
Instruments, Lights, and Mirrors 
Compass$0 
Interior ambient lighting$150 
Trip computer$150 
Turn signals on or near mirrors$25 
Xenon HID headlights $500
Seats and Interior Trim 
Folding second row seats$300 
Manual lumbar adjuster, driver seat$50 
Memory system, driver seat $200
Metal pedals $75
Power fore-aft adjuster, passenger seat$100 
Power lumbar adjuster, driver seat $100
Power recliner, passenger seat$100 
Total Value of Features$2,925$3,150
Value of Feature Adjustments$0$225
Value of Feature Adjustments0-208

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Specifications Comparison: Kia Optima vs. Mazda RX-8

Model Year20102011
ModelOptimaRX-8
Body4dr Sedan4dr Coupe
Wheelbase107.1 in106.4 in
Length189.0 in175.6 in
Width71.1 in69.7 in
Height58.3 in52.8 in
Curb Weight3,158 lb.3,065 lb.
Fuel Capacity16.4 gal.15.9 gal.
Row 1 Headroom39.8 in38.2 in
Row 1 Shoulder Room57.1 in54.8 in
Row 1 Hip Room54.5 in53.3 in
Row 1 Legroom43.7 in42.7 in
Row 2 Headroom38.0 in36.8 in
Row 2 Shoulder Room56.3 in54.9 in
Row 2 Hip Room54.7 in48.1 in
Row 2 Legroom37.8 in32.2 in
Cargo Volume15.0 ft37.6 ft3

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Option Package Details
Kia Optima EX

Premium Package
FeatureValueRequested?
215/50VR17 tires400No
Power-adjustable pedals125No
Power recliner, passenger seat100No
Power fore-aft adjuster, passenger seat100No
Sunshade, rear125No
Heated front seats200Yes
Sunroof900Yes
CD changer, in-dash200No
Infinity, 360W, 7 speakers (with subwoofer)350No
Total Requested110044%
Total Not Requested140056%

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